How to think about boosters in light of this week's Pfizer and Moderna news
by from CNN.com - RSS Channel - App International Edition on (#5VGFC)
Pfizer and BioNTech announced Tuesday that they're beginning a clinical trial for an Omicron-specific Covid-19 vaccine. Moderna had previously revealed plans to develop its own vaccine that targets the variant, which is by far the dominant one in the United States right now.